Emergency railway-brake.



PATENTED AUG. 14, 1906. P. W. GQUNSELMAN & L. M. 0R

OGKETT.

EMERGENCY RAILWAY BRAKE.

APPLICATION FILED MAE.28, 1906.

. 4 Svwe 068 M 3 UNITED STATES PATENT .QFFIGE PHILLIP WILLIAM COUNSELMANAND LERQY M. CROCKETT, OF TOLEDO, OHIO.

EMERGENCY RAILWAY-BRAKE.

Specification of Letters Patent.

Patented Aug. 14, 1906.

Application filed March 28,1906. Serial No. 308,591.

To (0Z7 whom it nuty concern.-

Be it known that we, PHILLIP WILLIAM COUNSELMAN and LEROY M. CRooKETT,citicompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

'This invention relates to new and useful im rovements in emergencyrailway-brakes; an the object of the invention is to produce a device ofthis nature which may be used in connection with the ordinarybrake-shoe, which may be actuated either by hand or other power, andcomprises, essentially, a shoe having a friction-surface and providedwith a curved shank having a longitudinal movement through the ordinarybrake-shoe and provided with lever mechanism whereby the emergency-brakemay be raised and lowered, whereby the same may be thrown upon the trackimmediately in advance of the wheels.

The invention consists, further, in various details of construction andcombinations and arrangements of parts, which will be hereinafter fullydescribed and then specifically defined in the appended claims.

We illustrate our invention in the accompanying drawings, in whichFigure 1 is a side elevation of our improved brake, showing the same insolid lines applied and in dotted lines raised from the track and Fig. 2is a top plan view showing the mechamsrn for operating the brake.

Reference now being had to the detailsof the drawings by letter, Adesignates the truck of a car in which the axles B are mounted and whichcarry the wheels D designates a brake-shoe of the ordinary type, whichis shown as pivotally connected, by means of a link D, with a staple E,and which brake may be operated in the usual manner either by handoweror otherwise. Said brake-shoe has an e ongated curved slot runninglongitudinally therethrough, and F designates an emergency-brake havingits contact-surface serrated or roughened and adapted to bear againstthe tread of the rails. Said emergency-brake has a shank portion whichis curved and conforms to the elongated slot in said shoe D, in which ithas a bearing.

G designates a pin passing through said shank portion and adapted tocontact with the upper end of the shoe D to limit its downward movement.It will be understood that there are two emergencybrakes, one for eachof the opposite forward wheels ofthe truck, and N designates acrank-shaft mounted in bearings in standards N, which are mounted uponthe truck, and O designates a rod connected to a crank N upon saidshaft, and to which rod the pivotal operating-lever R is adjustablyheld.

J designates a notched segment-bar which is adapted to be fastened tothe latform of the car, and M is a spring-presse rod carrying a pawladapted to engage the notches of the segment-bar J, and the upper end ofsaid bar M is turned at an angle at M, forming means whereby it may beconveniently gripped with the angled end of the lever B when it isdesired to allow the emergency brakes to be quickly set.

In 0 eration, the emergency-brake being norma ly held from contact withthe treadsurface of the rails and in the event of the motorman desiringto apply the emergencybrake, the lever B. is swung upon its pivot, thusquickly throwing the emergency-brakes so that they will wedge betweenthe wheels and the tracks, thus causing the truck to come quickly to astandstill. It will be noted that when the emergency-brake is raisedfrom the track the brake-shoes D may be operated in the usual mannerwithout any interference with the emergency-brakes.

What we claim is 1. An emergency-brake for railway-cars comprising atruck, wheels thereon, a pivotal brake-shoe, an emergency-brake shoehaving an elongated shank passing through said pivotal brake-shoe, andmeans for throwing the emergency-brake against the tread of a rail, asset forth.

2. An emergency-brake for railway-cars comprising a truck, wheelsthereon, a pivotal brake shoe, an emergency-brake shoe having anelongated shank passir1 through said pivotal brake-shoe, a pivotalcrank-shaft, and

connections between thesame and the shank With said shank portions, anda lever mech- I5 portion of said emergency-brake, as set forth. anismfor rocking said crank-shaft, whereby 3. In combination with the truckof a railthe brake-shoes may be thrown against the Way, Wheels uponwhich the same is mounttread of the rail or raised therefrom, as set ed,ivotal brake-shoes mounted upon said forth. truer and provided Withelongated curved In testimony whereof We hereunto affix 20 slots,emergency-brake shoes, each having a our signatures in the presence oftwo Witcurved shank portion having a longitudinal nesses. play through aslot in the brake-shoes Which are connected to the truck, a pin passingthrough the shank portion of each emerency-brake shoe and adapted tolimit its ownward movement, a crank-shaft journaled upon the truck andhaving connection W PHILLIP WILLIAM COUNSELMAN. LEROY H. OROCKETT.

Witnesses:

EDNA BEARD, RoLLANn H. ARNOLD.

